Battlezone 1

I entered the multiplayer section for playing. I nstalled the files according to the FAQ. I could create missions, but not join games.
It said that there was a missing file when I did it.
Is there any repository of missions?

"Mission <somefile> not found" means you don't have the (custom) multiplayer map installed. If you install Battlezone 1998 and choose to install the additional multiplayer maps, you will be able to join games on custom maps. You should install the IA missions too, you might find a few you like. Of course if you prefer to install maps manually, the files are here. Single player IA maps, multiplayer Strat maps, and multiplayer DM maps.

Thank you. I noticed that those files include a .txt file with installation instructions. Nice.
There is nothing like a well documented addon.